Created attachment 431698 [details] emerge --info media-libs/mesa x11-libs/libdrm Hello, Since I updated media-libs/mesa to version 11.2.1 (and therefore, x11-libs/libdrm to version 2.4.67 as requested dependancy), my graphical session meets the following segmentation fault (from /var/log/Xorg.0.log.old): [ 3680.772] nouveau_exa_upload_to_screen:380 - falling back to memcpy ignores tiling [ 3680.901] (EE) [ 3680.901] (EE) Backtrace: [ 3680.901] (EE) 0: /usr/bin/X (xorg_backtrace+0x87) [0x559641f08f27] [ 3680.901] (EE) 1: /usr/bin/X (0x559641d28000+0x1e5efd) [0x559641f0defd] [ 3680.901] (EE) 2: /lib64/libc.so.6 (0x7f19dfb87000+0x34400) [0x7f19dfbbb400] [ 3680.901] (EE) 3: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7f19dbca8000+0x80b4) [0x7f19dbcb00b4] [ 3680.901] (EE) 4: /usr/lib64/xorg/modules/libexa.so (0x7f19db886000+0x9f61) [0x7f19db88ff61] [ 3680.901] (EE) 5: /usr/bin/X (0x559641d28000+0x15dfcc) [0x559641e85fcc] [ 3680.902] (EE) 6: /usr/bin/X (0x559641d28000+0x10b22b) [0x559641e3322b] [ 3680.902] (EE) 7: /usr/bin/X (0x559641d28000+0x10c995) [0x559641e34995] [ 3680.902] (EE) 8: /usr/bin/X (0x559641d28000+0x539b7) [0x559641d7b9b7] [ 3680.902] (EE) 9: /usr/bin/X (0x559641d28000+0x58361) [0x559641d80361] [ 3680.902] (EE) 10: /lib64/libc.so.6 (__libc_start_main+0x114) [0x7f19dfba7734] [ 3680.902] (EE) 11: /usr/bin/X (_start+0x29) [0x559641d678c9] [ 3680.902] (EE) [ 3680.902] (EE) Segmentation fault at address 0x7f19cb8437f0 [ 3680.902] (EE) Fatal server error: [ 3680.902] (EE) Caught signal 11 (Segmentation fault). Server aborting [ 3680.902] (EE) [ 3680.902] (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 3680.902] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 3680.902] (EE) [ 3680.902] (II) AIGLX: Suspending AIGLX clients for VT switch [ 3680.902] (II) NOUVEAU(0): NVLeaveVT is called. [ 3680.952] (EE) Server terminated with error (1). Closing log file. Reproducibility: always Steps: it happens every time when I use to watch big images with the webbrowser Firefox, on the website Imgur (it's an example, I didn't try elsewhere). Note: I both activated in VIDEO_CARDS USE flags "nouveau" and "r600 radeon" because I used to switch on different graphical cards, because my Radeon consumes more power than my Nvidia card, but is more powerful. On my side, I am downgrading Mesa back to branch 11.1(.3), and libdrm to the stable version 2.4.65.
please attach Xorg.0.log.
Created attachment 432290 [details] /var/log/Xorg.0.log (In reply to Alex Xu (Hello71) from comment #1) > please attach Xorg.0.log. Ok, but I don't have anymore the log during the specific error.
Hello, I updated the title, because I put back x11-libs/libdrm to version 2.4.67 and even now 2.4.68, and the segmentation didn't occur again with the same "test"; so I guess the implication of x11-libs/libdrm is not related to this bug. Thanks for support.
Created attachment 434186 [details] emerge --info 'media-libs/mesa' 'sys-devel/clang' 'sys-devel/llvm' HEllo! Just an update to say I upgraded Mesa to version 11.2.2, and I didn't encountered the bug yet, so I guess it is fixed.
Thanks for the report. Marking as fixed per comment #4, please reopen this bug if you see the segmentation fault again.